3871937 has 8 divisors (see below), whose sum is σ = 4117032. Its totient is φ = 3628800.

The previous prime is 3871921. The next prime is 3871961. The reversal of 3871937 is 7391783.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65536 + 3806401 = 256^2 + 1951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3871937 - 2⁴ = 3871921 is a prime.

It is a super-2 number, since 2×3871937² = 29983792263938, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3871937.

It is not an unprimeable number, because it can be changed into a prime (3871537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6887 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (514629).

Almost surely, 2^3871937 is an apocalyptic number.

It is an amenable number.

3871937 is a deficient number, since it is larger than the sum of its proper divisors (245095).

3871937 is a wasteful number, since it uses less digits than its factorization.

3871937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979.

The product of its digits is 31752, while the sum is 38.

The square root of 3871937 is about 1967.7238119208. The cubic root of 3871937 is about 157.0276365537.

The spelling of 3871937 in words is "three million, eight hundred seventy-one thousand, nine hundred thirty-seven".